Summary: It took me a while to warm up to this set of ATH-W1000X, because they are just so warm compared to what I'm used to, so it sounded like they lacked the clarity of my other sets (which, to be fair, are excellent and very expensive sets such as the Beyerdynamic T1 and the open ATH-AD2000X) - but it's...
Pros: Beautiful tone curve (warm without being muddy), crystal clear, Audio-Technica comfort, great value compared to competition
Summary: Bought my ATH-W1000X headphones used, with leather earcups and an improved cable. Using a Linn Mimik CD Player and an older Woo WA-3 with Amperex (Holland) tubes, and getting what I consider exceptional sound for from dynamic drivers.
Summary: Really wanting to buy the AD2000 I got the W1000x on the Japanese Yahoo Auction site for a ridiculously low price of 29000 yen. They are used but have almost no wear or tear. I guess they have been broken in alreay, but I really can't say.
Summary: Firstly, fit and finish:
I am able to wear these guys for upwards of 7 hours in any day. The ATH "wing" mechanism is excellent, and one of the best headphone fit devices on the market. Perfect fit, every time, even if someone else tries them out. Totally amazing.
Pros: Glorious midrange, beautiful with vocals, fantastic rich bass
Cons: If the source is too bright, these will accentuate it, pleather pads (minus one star from design for that)